SERPINE1 and sarcoma: A few studies have analysed uPA and PAI-1 antigen levels in plasma/serum and its contribution to prognosis in carcinoma patients but none have been conducted for sarcoma patients (Strojan et al, 1998; Miyake et al, 1999; Abendstein et al, 2000; Rha et al, 2000; Shariat et al, 2007; Iwadate et al, 2008; Herszényi et al, 2008).